@misc{a+comparative+analysis+methodology+of+calculation+of+strength+tubesheets+by+european+standards+and+guidelines+for+udt,
    author = {Celarek, Aneta i Talaga, Jan},
    title = {A comparative analysis methodology of calculation of strength tubesheets by european standards and guidelines for UDT},
    journal = {Technical Transactions},
    address = {Kraków},
    publisher = {<a href=\"http://www.wydawnictwo.pk.edu.pl/\" target=\"_blank\">Wydawnictwo PK</a>},
    date = {2016},
    number = {Y. 113, iss. 2-M}
}